Lubricating system for motors.



w. L. MARE. LUBRIGATING SYSTEM FOR MOTORS.

APPLICATION FILED APB.21, 1913.

Patented July 21, 1914 4 SHEETS-SHEET 1.

W. L. MARR. LUBRIGATING SYSTEM r011 MOTORS.

APPLICATION FILED APILZI, 19113.

Patented July 21, 19 14 4 SHEETS-SHEET 2.

W. L. MARR. v LUBBIGATING SYSTEM FOR MOTORS. APPLICATION FILED APB.21,1913.

Patented July 21,1914;

W. L. MARE. LUBBIGATING SYSTEM FOR MOTORS.

APPLICATION FILED APB..21, 1913. 1,104,057, Patented July 21, 1914.

' .4 sums-slum 4.

b KY. i2:

m lltll IM H H.

rare

LUBRICATING SYSTEM FOR MOTORS.

Specification of Letters Patent.

Patented July 21, 1914.

Application filed April 21, 1913. Serial No. 762,527.

To all whom it may concern:

Be it known that I, \VALTER L. MARK, a citizen of the-United States ofAmerica, residing at Flint, in the county of Genesee and Stateof'Michigan, have lnvented certain new and useful Improvements inLubricating Systems for Motors, of which the following is aspecification, reference being had therein to the accompanying drawings.

In the operation of automobiles, motor boats and the like, wherein themotor is liable to assume different inclined ositions owing to themovement of the ve icle or boat, it is desirable for the feed pump ofthe lubrica-ting system, if the latter be of the type wherein thecirculation system includesthe engine base for trapping and returningthe oil to the pump, that the oil be maintained at sufficient deptharound the pump to always supply the latter regardless of the positionof the motor.

This invention relates to a lubricating system for motors ofautomobiles, boats and the like wherein provision ismade for maintaining a supply of lubricant for a pump included in the system, regardlessof the angle of inclination of the motor or its position under ordinaryworking condition.

The invention consists in the matters hereinafter set forth and moreparticularly pointed out in the appended claims.

In the drawings, Figure 1 is a plan view, partially broken away of thebase of a motor, a feed pump and a gage tank that embody features of theinvention; Fig. 2 is a view, partially in side elevation and partiallybroken away and in sect-ion of the base, tank and pump; Fig. 3 is a viewin detail of a return check valve; Fig. 4 is a. view taken on oraboutline IV IV of Fig. 1; Fig. 5 is a view taken in section on or about lineVV of Fig. 1; Fig. 6 is a View in end clevation of Fig. 1; Fig. 7 is anenlarged View,

- partially in longitudinal section and partially in elevation of a feedpump and driving mechanism therefor; Fig. 8 is a view in detail of thepump; and Fig. 9 is a view taken on or about line IXIX of Fig. 7

As herein shown in preferred form, an engine base 1 suitably ribbed andflanged to combine strength and lightness is provided at intervals withcross walls. These are through the pairs of cross walls.

grooved, hollow or disposed in pairs, and

form supports for the crank shaft bearings between which the cranks 0fthe engine play.

A feed duct extends longitudinally of the base in substantially parallelrelation to the upper, normally horizontal face thereof and In preferredform, the duct is formed by a pipe indicated at 2, Wa is cast into thebase when the latter is housed and is provided with a forward dischargeaperture 3 that opens into the groove, hollow or space between theforward cross walls 4, another opening 5 that discharges into the spacebetween another pair of cross walls 6, an aperture 7 be tween the crossWalls 8, and an aperture 9 between the cross walls 10. The base, whichis substantially semi-circular in cross section, slopes downwardly fromits forward end to its rear compartment in which the fly wheel turns. Acombined gage reservoir and tank is seated on the dash or otherconvenient observation spot of the vehicle or boat on which the motor ismounted and communicates with an inlet 11 of the pipe 2 through asuitable pipe 12 or the like. the reservoir being adapted to supply theinlet by gravity. In preferred form the tank comprised a base 13 onwhich a bell jar '14 of glass or transparent material is secured as by aclamping rod that may also hold a filling cap 16 in place. As one meansof making connections between the pipe 12 and the inlet of the pipe 2,the pipe may have a flanged end .17 secured by a collar 18 on the nipple19 of a fitting 20 detachably held against the side of the casing ofthe. base by set screws 21 or the like.

A pump casing 22 is removably secured in the opening in the base nearthe lowest point thereof by cap screws 23 or the like. Aforamin'ous cage24 that acts as a screen to exclude dirt and like foreign substances isformed on the casing aroundan inlet resists endwise movement and thatcorresponds to an enlarged portion 36 of the journal 29, the spring 28being in compression between the heads. A suitably disposed oil duct 37sufficiently lubricates the bearing of the journal 29.

To prevent the escape of the oil from the space around the pump cagewhen the motor is tilted forwardly, and the oil approaches the levelindicated by the broken line 38 of Fig. 2, (suitable openings indicatedat 39, in the forward cross walls,permitting this,) a swinging checkvalve is placed in an opening through the base of the walls 8, 8, thisopening being so disposed as to normally allow the oil to fiowbackwardly toward the pump chamber. Preferably the check valve consistsof a closure 39 which hangs on a pivot pin 40 passing through a lug 41extending from the closure, the parts being so disposed that the closureseats itself when the base is tilted forward slightly but opens to allowthe backward flow of oil when the level thereof ahead of the walls 8, 8comes higher than that of the lubricant accumulated in the chambercontaining the pump gage. As a result of this construction any lubricantfinding its way into the spaces between the bearing walls through thelongitudinal and normally horizontal duct or pipe, returns down thesloping wall of the base and collects in the chamber around the gage ofthe pump and afi'ords adequate supply to the latter under ordinaryworking conditions. If the motor is tilted forwardly, the check valveprevents the corresponding movement of the oil and traps it so that itis retained in the base around and over the pump inlet.

Obviously, changes in the details of construction may be made withoutdeparting from the spirit of my invention and I do not care to limitmyself to any particular form or arrangement of parts.

. \Vhat I claim is I 1. A lubricating system for a motor comprising a"base provided with a longitudinally disposed feed duct and divided bycross walls between which the feed duct discharges, the walls havingopenings whereby lubricant trapped in the base drains into the lowestcompartment, an automatic check valve controlling the opening into thelowest compartment for retaining the contents thereof when the base istilted from normal position, a pump having an inlet supplied by gravityfrom the lowest compartment, and a reservoir into which the pump discharges and from which the lubricant flows into the base feed duct.

2. In a lubricating system for a motor, an

engine base having a longitudinally inclined lowest compartment, and areservoir supplied by the pump and connected to the feed duct forsupplying the latter.

3, In a lubricating system for a motor, a cast metal base provided withan inclined bottom and divided by cross walls into compartments withdrainage openings through the walls, a substantially horizontal feedduct pipe cast into the wall of the casing and provided with outletsinto the base between the cross walls, an automatic check .valvecontrolling the opening through a cross wall into the lowestcompartment, :1. pump having an inlet fed by gravlty from the basecompartment, and a reservolr supplied by the pump and connected to thefeed duct pipe to discharge into the latter.

4. In a lubricating system for a motor, a base having a longitudinallyinclined bot tom, cross walls dividing the base into compartments andhaving drainage openings therethrough, an automatic check valve in thedrainage opening into the lowest compartment for retaining the contentsof the latter when the base is tilted from normal position, a pumphaving an inlet supplied by ravity from the lowest compartment of theass and means for directing discharge from the pump into the basecompartments.

In a lubricating system for a motor compiising a base provided with alongitudin'ally inclined bottom and with cross walls dividing the baseinto compartments the cross walls having drainage openingst erethrough,means controlling the opening into the lowest compartment for retainingthe contents thereof when the base is tilted from normal position, apump casing secured in an opening in the base in the lowest compartmentwith an inlet opening from the compartment, a pair of intermeshing gearsin the casing for forcing oil from the inlet to an outlet therefrom,means for returning. and distributing the discharge from theouttiou'i'rom a motor.

6. ln a lubricating system for a motor, an engine base having alongitudinally inclined bottonn a pump casing secured in an opening inthe bottom and provided with an inlet communicating with the interior ofthe base, an upright spindle journaled .in the pump casing. 21 pair ofintermeshing gears mounted in the casing one of which is secured to thespindle, the gears being adapted to force.liquid from the inlet of thecasing to an outlet, means for returning. the discharge from the outletto the engine base, a journal mounted in the engine base insubstantially axial alinemcnt with the spindle, a yielding drivingconnection between the proximate end portions of the spindle and thejournal, and means for rotating the journal by connection with a motor.

7. In a lubricating system for a motor, an

engine base having a longitudinally inclined bottom, a pump casingsecured in an opening in the bottom and provided with an inletcommunicating with the interior of the base,.an upright spindlejournaled in the pump casing, a pair of intermeshing gears mounted inthe casing one of which is secured to the spindle, the gears beingadapted to force liquid from the inlet of the casing to an outlet, ajournal mounted in the engine base in substantially axial alinement withthe spindle, a yielding driving connection between the proximate endportions of the spindle and the journal, means for operativelyconnecting the journal to a motor, cross walls dividing the engine baseinto compartments and having drainage openings therethrough, means fordirecting the discharge outlet into the compartments, and a check valvecontrolling the drainage opening into the compartment in communicationwith the pump casing, adapted to retain the contents of said compartmentwhen the base is tilted from normal position.

8. In a lubricating system for a motor, an engine base having alongitudinally inclined bottom, a pump casing secured in an opening inthe bottom and provided with an inlet communicating with the interior ofthe base, an upright. spindle journaled in the pump casing, a pair oflntermesh ng gears mounted in the casing one of which is secured to thespindle, the gears being adapted to force liquid from the inlet of thecasing to an outlet. a journal mounted in the engine base insubstantially axial 'alinement with the spindle, a yielding drivingconnection be-. tween the proximate end portions of the spindle and thejournal, means whereby the motor is adapted to drivethe journal;crosswalls dividing the engine base into compartments and having drainageopenings therethrough, a. check valve controlling the drainage openinginto the compartment in communication with the pump casing adapted toretain the contents of said compartment when the base is tilted fromnormal position, a normally horizontal feed duct in the base havingoutlets discharging into the various compartments of the latter, and aslight feed reservoir connected .with the outlet of the pump andarranged to discharge into the feed duct.

9. In a lubricating system for a motor, an engine base having a.longitudinally inclined bottom, cross walls dividing the base into.compartments and having drainage openings 'therethrough, meanscontrolling the opening into the lowest compartment for retaining thecontents thereof when the base is tilted from normal position, a pumpcasing secured in an opening in the bottom of the base in the lowestcompartment with an inlet in communication with saidcompartment,rotatable forcing members in the vpump casing for driving lubricant fromthe the pumpfrom a motor, a sight teed reservoir into which the pumpdischarges, a feed duct pipe secured in the wall of the base andprovided with discharge openings between the cross walls of the base,and a pipe connecting the reservoir with the duct pipe.

- 10. In a lubricating system for a motor, a base provided with alongitudinally inclined bottom and divided by cross walls'intocompartments in communication through drainage openings in the crosswalls, means controlling the opening in the cross wall into the lowestcompartment of the base for retaining the contents of the latter whenthe base is tilted from normal position, a pump casing secured in anopening in the bottom of the lowest compartment, provided with an inletfed by gravity from the compartment, a foraminous cage shielding theinlet, apair of intermeshing gears in the pump casing adapted to forcelubricant supplied by the inlet through an outlet from the easing, meansfor directing the discharge from the outlet to the base compartments,:1. spindle journaled in the casing on which one of the gears issecured, a sleeve bearing secured on the base, a journal rotatable inthe bearing, a spring member operatively connecting the proximate endportions of the spindle and journal adapted to prevent end play in bothand to rotate them substantially in unison, and means for driving thejournal from the motor.

11. A lubricating system for a motor comprising an engine base dividedby cross llO walls that have drain openings therethrough wherebylubricant in the base drains into the lowest compartment thereof, meansfor retaining the contents of the lowest compartment when the base istilted from normal position, a feed duct at one side of the base havingdischarge openings into the base between the cross-walls, and means forforcing lubricant from the lowest compartment into the feed duct. Intestimony whereof I aflix my signature in presence of two witnesses.

WALTER L. MARE. Witnesses:

W. L. NELSON, MILTON POLLOCK.

